Midway.galaxy
Insert to:
"your_account/AppData/Local/Ironclad Games/Sins of a Solar Empire/GalaxyForge"

ScenarioPicture-Midway.tga
Insert to:
"Program Files (x86)/Steam/steamapps/common/sins of a solar empire trinity/Textures"

Enjoy it! :)					By Hanzmeister, ver.1.01